TWI583440B - A fine air bubble generating device and a cyclone flow forming body - Google Patents
A fine air bubble generating device and a cyclone flow forming body Download PDFInfo
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- TWI583440B TWI583440B TW101150435A TW101150435A TWI583440B TW I583440 B TWI583440 B TW I583440B TW 101150435 A TW101150435 A TW 101150435A TW 101150435 A TW101150435 A TW 101150435A TW I583440 B TWI583440 B TW I583440B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
- B01F23/2323—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
- B01F23/2373—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media for obtaining fine bubbles, i.e. bubbles with a size below 100 µm
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
- B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
- B01F25/31241—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow the main flow being injected in the circumferential area of the venturi, creating an aspiration in the central part of the conduit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
- B01F25/3125—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characteristics of the Venturi parts
- B01F25/31251—Throats
- B01F25/312512—Profiled, grooved, ribbed throat, or being provided with baffles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F2025/91—Direction of flow or arrangement of feed and discharge openings
- B01F2025/913—Vortex flow, i.e. flow spiraling in a tangential direction and moving in an axial direction
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
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Description
本發明係關於一種利用旋回流進行氣液混合，而在液體中產生微細氣泡之微細氣泡產生裝置。 The present invention relates to a microbubble generating device which performs gas-liquid mixing using a swirling reflux to generate fine bubbles in a liquid.
在液體中產生微型氣泡等微細氣泡之方式，習知有氣液二態高速旋回方式。氣液二態高速旋回方式係沿著噴嘴內之圓筒面使液體高速旋回，而在噴嘴中心(沿著軸心)產生負壓。而後，藉由該負壓於噴嘴內導入氣體，而形成高速旋回之氣液二態旋回流。將該旋回流沿著軸心縮流，藉由從噴嘴出口開放，剪切氣液二態流體而產生微細氣泡(例如參照專利文獻1)。 A method of generating fine bubbles such as microbubbles in a liquid is known in the art of gas-liquid two-state high-speed rotation. The gas-liquid two-state high-speed spiraling method rotates the liquid at a high speed along the cylindrical surface in the nozzle, and generates a negative pressure at the center of the nozzle (along the axis). Then, the gas is introduced into the nozzle by the negative pressure to form a gas-liquid two-state cyclone reflux at a high speed. The swirling flow is contracted along the axis, and the gas-liquid two-state fluid is sheared by opening from the nozzle outlet to generate fine bubbles (see, for example, Patent Document 1).
專利文獻1之微細氣泡產生裝置，係將高壓液體通過螺旋狀液體導入路而引導至噴嘴內之氣液混合空間，藉此形成沿著氣液混合空間之圓筒內周面的螺旋狀高速旋回流。螺旋狀液體導入路係藉由使在外周設有螺旋狀葉片之圓柱狀的中央固體部嵌合於噴嘴本體之圓筒部而形成。 The microbubble generating device of Patent Document 1 guides a high-pressure liquid through a spiral liquid introduction path to a gas-liquid mixing space in the nozzle, thereby forming a spiral high-speed cycle along the inner circumferential surface of the cylinder of the gas-liquid mixing space. flow. The spiral liquid introduction path is formed by fitting a cylindrical central solid portion having a spiral blade on the outer circumference to the cylindrical portion of the nozzle body.
液體通過設於中央固體部上方之液體導入路而導向螺旋狀液體導入路。另外，因為氣體係通過連接於沿著中央固體部之中心軸所形成的通氣孔之管路而供給，所以管路配置於液體導入路內。雖然液體導入路與氣體導入路需要分離，不過，由於這是管路安裝等之問題，因此藉由使管路直進，將液體導入路概略彎曲成直角而達成。 The liquid is guided to the spiral liquid introduction path through a liquid introduction path provided above the central solid portion. Further, since the gas system is supplied through a pipe connected to the vent hole formed along the central axis of the central solid portion, the pipe is disposed in the liquid introduction path. Although the liquid introduction path and the gas introduction path need to be separated, this is a problem such as piping installation. Therefore, by straightening the pipe, the liquid introduction path is roughly bent at a right angle.
【先前技術文獻】 [Previous Technical Literature]
【專利文獻】 [Patent Literature]
[專利文獻1]日本特開2008-114205號公報 [Patent Document 1] Japanese Patent Laid-Open Publication No. 2008-114205
但是，專利文獻1之構成，因為液體導入路概略彎曲成直角，所以在該部分產生壓力損失，不利於高壓供給液體。又，需要設置防止高壓液體洩漏至直進之管路穿越液體導入路之壁面的部分之密封構造，因而需要相關之加工及零件。再者，由於液體導入路彎曲時，無法通過液體導入路安裝中央固體部，因此，需要將噴嘴本體分離成嵌裝中央固體部之前端部與形成彎曲之液體導入路的基端部。 However, in the configuration of Patent Document 1, since the liquid introduction path is roughly bent at a right angle, a pressure loss occurs in this portion, which is disadvantageous for supplying a liquid at a high pressure. Further, it is necessary to provide a sealing structure for preventing the high-pressure liquid from leaking to the portion of the straight-through pipe passing through the wall surface of the liquid introduction path, and thus the related processing and parts are required. Further, since the central solid portion cannot be attached through the liquid introduction path when the liquid introduction path is bent, it is necessary to separate the nozzle body into the proximal end portion where the central solid portion is fitted and the base end portion where the curved liquid introduction path is formed.
本發明之問題為提供一種可減低液體之壓力損失並且零件數量少的氣液二態高速旋回方式之微細氣泡產生裝置。 SUMMARY OF THE INVENTION The problem of the present invention is to provide a gas-liquid two-state high-speed rotary type micro-bubble generating device which can reduce the pressure loss of a liquid and has a small number of parts.
本發明之旋回通路形成體係裝設於微細氣泡產生裝置中，該微細氣泡產生裝置是將通過螺旋通路而加壓之液體供給至噴嘴內的氣液混合空間，而產生旋回流，使用藉由旋回流產生之負壓將氣體導入氣液混合空間，形成氣液二態旋回流，藉由從噴嘴噴出氣液二態旋回流，剪切氣液二態流體而產生微細氣泡，其特徵為具備：本體，其係具有圓筒部；外周部，其係具有與圓筒部同軸性之圓筒內周面；螺旋斜坡，其係形成於本體與外周部之間；厚壁部，其係在螺旋斜坡之起端部連絡圓筒部與外周部之間；第一氣體通路，其係沿著圓筒部之中心軸而形成；及第二氣體通路，其係通過厚壁部內，將第一氣體通路向外周部之外側連絡。 The recirculation passage forming system of the present invention is installed in a microbubble generating device that supplies a liquid pressurized by a spiral passage to a gas-liquid mixing space in a nozzle to generate a swirling flow, using a cycle The negative pressure generated by the flow introduces the gas into the gas-liquid mixing space to form a gas-liquid two-state cyclone reflux. The gas-liquid two-state cyclone is ejected from the nozzle to shear the gas-liquid two-state fluid to generate fine bubbles, which are characterized by: a body having a cylindrical portion; an outer peripheral portion having a cylindrical inner circumferential surface coaxial with the cylindrical portion; a spiral slope formed between the body and the outer peripheral portion; and a thick portion portion being attached to the spiral a starting end of the slope is connected between the cylindrical portion and the outer peripheral portion; a first gas passage is formed along a central axis of the cylindrical portion; and a second gas passage is passed through the thick portion to pass the first gas The passage is connected to the outside of the outer circumference.
外周部宜具有圓筒狀之外周面，沿著外周面之周方向形成一對圓環狀突起部，第二氣體通路之開口部宜形成於一對圓環狀突起部之間。為了形成穩定之旋回流，宜設置複數個螺旋斜坡，從射出成形上之觀點而言，複數個螺旋斜坡之各個宜在中心軸方向不重疊。又，在外周部之圓筒內周面的螺旋斜坡之起端部豎起至軸方向，在對應於該起端部之位置，例如形成沿著圓筒軸而延伸之用於軟管定位的梁部。 The outer peripheral portion preferably has a cylindrical outer peripheral surface, and a pair of annular projections are formed along the circumferential direction of the outer peripheral surface, and the opening of the second gas passage is preferably formed between the pair of annular projections. In order to form a stable swirling flow, a plurality of spiral slopes are preferably provided. From the viewpoint of injection molding, each of the plurality of spiral slopes should preferably not overlap in the direction of the central axis. Further, the rising end portion of the spiral slope of the inner circumferential surface of the cylindrical portion of the outer peripheral portion is erected to the axial direction, and at a position corresponding to the initial end portion, for example, a hose extending along the cylindrical shaft is formed for positioning of the hose. Beam department.
本發明之微細氣泡產生裝置係裝設上述旋回流形成體，其特徵為：在嵌插旋回流形成體之旋回流形成體收容空間設置橫孔，旋回流形成體裝設時，橫孔向第二氣體通路連接。 In the microbubble generating device of the present invention, the revolving forming body is provided, and a horizontal hole is provided in the swirling recirculating body accommodating space in which the revolving forming body is inserted, and the revolving forming body is installed Two gas passage connections.
旋回流形成體之外周部宜具有圓筒狀的外周面，沿著外周面之周方向形成一對圓環狀突起部，第二氣體通路之開口部宜形成於一對圓環狀突起部之間，橫孔配置於一對圓環狀突起部之間。藉此，可在環狀突起部之間形成氣體通路，任意設定旋回流形成體旋轉方向之位置與橫孔之位置。又，在被一對圓環狀突起部夾著而形成之環狀空間的外側，鄰接於圓環狀突起部分別配置O形環。 The outer peripheral portion of the swirling reflow forming body preferably has a cylindrical outer peripheral surface, and a pair of annular projections are formed along the circumferential direction of the outer peripheral surface, and the opening of the second gas passage is preferably formed in a pair of annular projections. The lateral holes are disposed between the pair of annular projections. Thereby, a gas passage can be formed between the annular projections, and the position of the direction of rotation of the swirling reflow forming body and the position of the lateral hole can be arbitrarily set. Further, an O-ring is disposed adjacent to the annular projection portion on the outer side of the annular space formed by the pair of annular projections.
本發明可提供一種減低液體之壓力損失並且零件數量少的使用氣液二態高速旋回方式之微細氣泡產生裝置。 The present invention can provide a microbubble generating device using a gas-liquid two-state high-speed spiraling method which reduces the pressure loss of a liquid and has a small number of parts.
10‧‧‧微細氣泡產生裝置 10‧‧‧Microbubble generating device
11‧‧‧微細氣泡產生裝置本體 11‧‧‧Microbubble generating device body
12‧‧‧孔 12‧‧‧ hole
13‧‧‧橫孔 13‧‧‧ transverse holes
14‧‧‧孔 14‧‧‧ hole
15‧‧‧噴嘴 15‧‧‧ nozzle
16‧‧‧氣液混合空間 16‧‧‧ gas-liquid mixing space
17‧‧‧液體供給部 17‧‧‧Liquid supply department
18‧‧‧旋回流形成體 18‧‧‧Rotary reflow forming body
19‧‧‧旋回流形成體收容空間 19‧‧‧Rotary reflow forming body accommodating space
20‧‧‧圓錐台形空間 20‧‧‧Crested space
21‧‧‧階部 21‧‧‧
22‧‧‧圓環狀空間 22‧‧‧Ring space
23‧‧‧流量調整機構 23‧‧‧Flow adjustment mechanism
24‧‧‧氣體供給部 24‧‧‧ Gas Supply Department
25、26‧‧‧O形環 25, 26‧‧‧O-ring
27‧‧‧針型螺桿 27‧‧‧needle screw
180‧‧‧旋回流形成體本體 180‧‧‧Rotary reflow forming body
181‧‧‧外周部 181‧‧‧The outer part
182‧‧‧圓筒部 182‧‧‧Cylinder
183‧‧‧台形部 183‧‧‧Desktop
184、185‧‧‧突起部 184, 185‧‧ ‧ protrusions
186、187‧‧‧螺旋斜坡 186, 187‧‧ ‧ spiral slope
186A、187A‧‧‧起端部(上游側) 186A, 187A‧‧ ‧ end (upstream side)
188‧‧‧第一氣體通路 188‧‧‧First gas path
189‧‧‧第二氣體通路 189‧‧‧Second gas path
190、191‧‧‧梁 190, 191‧‧ ‧ beams
192‧‧‧倒角部 192‧‧‧Chamfering
第一圖係本實施形態之微細氣泡產生裝置的部分剖面圖。 The first drawing is a partial cross-sectional view of the microbubble generating device of the present embodiment.
第二圖係本實施形態之旋回流形成體的側視圖。 The second drawing is a side view of the cycloid forming body of the present embodiment.
第三圖係旋回流形成體之平面圖。 The third figure is a plan view of the spin-return forming body.
第四圖係沿著第三圖之IV-IV線的旋回流形成體之剖面圖。 The fourth figure is a cross-sectional view of the swirling reflow forming body along the line IV-IV of the third figure.
第五圖係沿著第三圖之V-V線的旋回流形成體之部分剖面圖。 The fifth drawing is a partial cross-sectional view of the swirling reflow forming body along the line V-V of the third drawing.
第六圖係沿著第三圖之VI-VI線的旋回流形成體之剖面圖。 The sixth drawing is a cross-sectional view of the spiral reflow forming body along the line VI-VI of the third figure.
以下，參照圖式說明本發明之實施形態。第一圖係顯示本發明一種實施形態之微細氣泡產生裝置的構成之部分剖面圖。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. Fig. 1 is a partial cross-sectional view showing the configuration of a microbubble generating device according to an embodiment of the present invention.
微細氣泡產生裝置10之本體11中，例如設置沿著第一圖之X1軸縱向通過的孔12。孔12中例如設置沿著與X1軸正交之Y軸，向本體11之外部連通的橫孔13。又，在橫孔13中例如設置沿著與Y軸正交之X2軸，向本體11之外部連通的孔14。另外，本實施形態中，X1、X2軸係平行地配置，不過並非限定於此者，X1、X2軸亦可為扭轉之關係。 In the body 11 of the micro-bubble generating device 10, for example, a hole 12 that passes longitudinally along the X1 axis of the first figure is provided. The hole 12 is provided with, for example, a horizontal hole 13 that communicates with the outside of the body 11 along a Y-axis orthogonal to the X1 axis. Further, for example, a hole 14 that communicates with the outside of the body 11 along the X2 axis orthogonal to the Y-axis is provided in the lateral hole 13. Further, in the present embodiment, the X1 and X2 axes are arranged in parallel, but the present invention is not limited thereto, and the X1 and X2 axes may be in a twisted relationship.
孔12之一方端部(第一圖左側)構成微細氣泡產生裝置10之噴嘴15的氣液混合空間16。氣液混合空間16例如構成圓筒空間，其前端開口部呈現先縮徑後再擴徑之形狀。在氣液混合空間16內，如後述沿著 其內周面噴出高壓液體，液體以高速旋回並朝向噴嘴前端。在氣液混合空間16之中心，藉由該高速旋回流產生沿著X1軸之負壓，藉由該負壓誘導之氣體供給至氣液混合空間16，而形成氣液二態旋回流。氣液二態旋回流從噴嘴15之前端噴出，此時剪切氣液二態流體而產生微細氣泡。 One end portion of the hole 12 (the left side of the first figure) constitutes a gas-liquid mixing space 16 of the nozzle 15 of the fine bubble generating device 10. The gas-liquid mixing space 16 constitutes, for example, a cylindrical space, and the front end opening portion has a shape in which the diameter is first reduced and then expanded. In the gas-liquid mixing space 16, as will be described later The inner peripheral surface ejects a high-pressure liquid, and the liquid is rotated at a high speed toward the front end of the nozzle. At the center of the gas-liquid mixing space 16, a negative pressure along the X1 axis is generated by the high-speed swirling backflow, and the gas induced by the negative pressure is supplied to the gas-liquid mixing space 16, thereby forming a gas-liquid two-state swirling reflux. The gas-liquid two-state cyclone is ejected from the front end of the nozzle 15, and at this time, the gas-liquid two-state fluid is sheared to generate fine bubbles.
另外，在孔12之另一端(與噴嘴15相反側)設置液體供給部17。液體供給部17係將上述之液體從外部供給至孔12內的部分。本實施形態例如使用撓曲軟管(無圖示)供給液體，液體供給部17中例如採用推入接頭等軟管接頭。另外，液體亦可通過管路供給，接頭可依目的及使用條件使用先前習知之各種流體接頭。 Further, a liquid supply portion 17 is provided at the other end of the hole 12 (opposite to the nozzle 15). The liquid supply unit 17 supplies the above-described liquid from the outside to the portion in the hole 12. In the present embodiment, for example, a flexible hose (not shown) is used to supply the liquid, and in the liquid supply portion 17, for example, a hose joint such as a push-fit joint is used. In addition, the liquid can also be supplied through a pipe, and the joint can use various conventional fluid joints depending on the purpose and conditions of use.
孔12中，於噴嘴15與液體供給部17之間設置用於收容旋回流形成體18之例如圓筒形的旋回流形成體收容空間19。旋回流形成體收容空間19之內徑比氣液混合空間16之內徑大，兩空間藉由呈圓錐台形之圓錐台形空間20連接。 In the hole 12, for example, a cylindrical swirling reflow forming body accommodating space 19 for accommodating the swirling reflow forming body 18 is provided between the nozzle 15 and the liquid supply portion 17. The inner diameter of the swirling reflow forming body accommodating space 19 is larger than the inner diameter of the gas-liquid mixing space 16, and the two spaces are connected by a truncated cone-shaped space 20 having a truncated cone shape.
旋回流形成體18係用於將從液體供給部17供給之高壓液體沿著氣液混合空間16之內周噴出，並且將氣體導向氣液混合空間16之中心的部材，且具備配置於中央之本體180，及包圍其周圍之例如概略圓筒形的外周部181。本體180由圓筒部182與同軸性伸出之切頭圓錐台形狀的台形部183構成。亦即，當旋回流形成體18配置於旋回流形成體收容空間19時，台形部183伸出至圓錐台形空間20內，而在台形部183之外周面與圓錐台形空間20的內周面之間形成間隙。 The swirling reflow forming body 18 is configured to eject the high-pressure liquid supplied from the liquid supply unit 17 along the inner circumference of the gas-liquid mixing space 16 and guide the gas to the center of the gas-liquid mixing space 16 and to be disposed at the center. The body 180 has an outer peripheral portion 181 which is surrounded by, for example, a substantially cylindrical shape. The body 180 is composed of a cylindrical portion 182 and a mesa portion 183 having a conical frustum shape extending coaxially. In other words, when the swirling reflow forming body 18 is disposed in the swirling reflow forming body housing space 19, the mesa portion 183 projects into the truncated cone shaped space 20, and the outer peripheral surface of the mesa portion 183 and the inner peripheral surface of the truncated cone shaped space 20 A gap is formed between them.
旋回流形成體收容空間19之內徑比圓錐台形空間20之台形底面的內徑大，在兩空間19、20之連接部形成階部21。亦即，組合時，將旋回流形成體18從液體供給部17側嵌插於孔12內時，當旋回流形成體18到達適當位置時，外周部181之前端抵接於階部21，管制旋回流形成體18向X1軸方向移動。其後，在液體供給部17中安裝流體接頭時，在外周部181之另一端抵接流體接頭之零件(例如墊環(Back ring))。亦即，旋回流形成體18夾在階部21與液體供給部17之間，固定其X1軸方向之位置。 The inner diameter of the swirling reflow forming body accommodating space 19 is larger than the inner diameter of the truncated bottom surface of the truncated cone shaped space 20, and the step portion 21 is formed at the joint portion between the two spaces 19 and 20. In other words, when the swirling reflow forming body 18 is inserted into the hole 12 from the liquid supply portion 17 side, the front end of the outer peripheral portion 181 abuts against the step portion 21 when the swirling reflow forming body 18 reaches the appropriate position. The swirling reflow forming body 18 is moved in the X1 axis direction. Thereafter, when the fluid joint is attached to the liquid supply unit 17, the other end of the outer peripheral portion 181 abuts against a component (for example, a back ring) of the fluid joint. That is, the swirling reflow forming body 18 is interposed between the step portion 21 and the liquid supply portion 17, and is fixed in the X1-axis direction.
在外周部181之外周面設置一對沿著周方向延伸之突起部184、185。突起部184、185之外徑設定為與旋回流形成體收容空間19之 內徑概等。亦即，在外周部181與旋回流形成體收容空間19的內周面之間形成藉由突起184、185夾著的圓環狀之空間22。又，在突起184、185之外側(圓環狀空間22之外側)，與各個突起密接而配置O形環25、26，以維持圓環狀空間22之氣密性。另外，為了防止O形環25、26之位置偏差，亦可將配置O形環之位置的外周面形成溝狀。 A pair of protrusions 184 and 185 extending in the circumferential direction are provided on the outer peripheral surface of the outer peripheral portion 181. The outer diameter of the protrusions 184 and 185 is set to be the same as the swirling reflow forming body accommodating space 19 The inner diameter is equal. In other words, an annular space 22 sandwiched by the projections 184 and 185 is formed between the outer peripheral portion 181 and the inner peripheral surface of the swirling reflow forming body accommodating space 19. Further, on the outer sides of the protrusions 184 and 185 (outside the annular space 22), the O-rings 25 and 26 are placed in close contact with the respective projections to maintain the airtightness of the annular space 22. Further, in order to prevent the positional deviation of the O-rings 25 and 26, the outer peripheral surface at the position where the O-ring is disposed may be formed in a groove shape.
橫孔13形成於與該圓環狀空間22對應之位置，圓環狀空間22與橫孔13一起構成氣體通路。在橫孔13中，為了控制供給之氣體流量，例如設置使用針型螺桿27等之流量調整機構23。又，本實施形態在沿著X2軸之孔14中設置氣體供給部24。氣體供給部24中例如設置推入接頭等流體接頭，連接撓曲軟管(無圖示)而將氣體供給至微細氣泡產生裝置10。亦即，可通過孔14、橫孔13而供給氣體至圓環狀空間22，且藉由調整針型螺桿之位置控制流路面積，調整氣體流量。 The horizontal hole 13 is formed at a position corresponding to the annular space 22, and the annular space 22 and the horizontal hole 13 constitute a gas passage. In the horizontal hole 13, in order to control the flow rate of the supplied gas, for example, a flow rate adjusting mechanism 23 using a needle screw 27 or the like is provided. Further, in the present embodiment, the gas supply portion 24 is provided in the hole 14 along the X2 axis. For example, a fluid joint such as a push-in joint is provided in the gas supply unit 24, and a flexible hose (not shown) is connected to supply the gas to the fine bubble generating device 10. That is, gas can be supplied to the annular space 22 through the holes 14 and the horizontal holes 13, and the flow path area can be adjusted by adjusting the position of the needle screw to adjust the gas flow rate.
在旋回流形成體18中，如後面詳述，設置從突起184、185間之外周面連通至台形部183之頂面中央部的氣體通路。亦即，氣液混合空間16通過設於台形部183之頂面中央的氣體通路，向圓環狀空間22連通，圓環狀空間22經由橫孔13、孔14向氣體供給部24連通。 In the swirling reflow forming body 18, as will be described in detail later, a gas passage that communicates from the outer peripheral surface between the projections 184, 185 to the central portion of the top surface of the mesa portion 183 is provided. In other words, the gas-liquid mixing space 16 communicates with the annular space 22 through the gas passage provided at the center of the top surface of the land portion 183, and the annular space 22 communicates with the gas supply portion 24 via the horizontal hole 13 and the hole 14.
其次，參照第二圖至第五圖，說明本實施形態之旋回流形成體18的更詳細構造。第二圖係旋回流形成體18之側視圖，第三圖係從第二圖之III方向的平面圖。又，第四圖係沿著第三圖之IV-IV線的剖面圖，第五圖、第六圖係從第四圖之V方向、VI方向的本體180之箭視圖。另外，第五圖、第六圖中以剖面圖顯示外周部181。 Next, a more detailed structure of the swirling reflow forming body 18 of the present embodiment will be described with reference to Figs. 2 to 5 . The second drawing is a side view of the swirling reflow forming body 18, and the third drawing is a plan view from the III direction of the second drawing. Further, the fourth drawing is a cross-sectional view taken along line IV-IV of the third drawing, and the fifth and sixth drawings are arrow views of the body 180 from the V direction and the VI direction of the fourth drawing. In addition, in the fifth and sixth figures, the outer peripheral portion 181 is shown in a cross-sectional view.
如第三圖至第六圖所示，在旋回流形成體18之圓筒部182與外周部181之間設置複數個螺旋斜坡，圓筒部182與外周部181藉由螺旋斜坡而連絡。本實施形態係設置一對螺旋斜坡186、187，螺旋斜坡186、187例如以5°~45°之傾斜角包含各個圓筒部182之周圍概略180°而設置。從液體供給部17供給之高壓液體通過外周部181之內側到達該螺旋斜坡186、187，並沿著螺旋斜坡186、187向圓錐台形空間20噴出。另外，螺旋斜坡186、187之起端部(上游側)186A、187A豎起至概略軸方向。 As shown in the third to sixth figures, a plurality of spiral slopes are provided between the cylindrical portion 182 of the swirling reflow forming body 18 and the outer peripheral portion 181, and the cylindrical portion 182 and the outer peripheral portion 181 are connected by a spiral slope. In the present embodiment, a pair of spiral slopes 186 and 187 are provided, and the spiral slopes 186 and 187 are provided, for example, at an inclination angle of 5° to 45°, including the circumference of each cylindrical portion 182 by 180°. The high-pressure liquid supplied from the liquid supply portion 17 reaches the spiral slopes 186, 187 through the inner side of the outer peripheral portion 181, and is ejected toward the truncated-conical space 20 along the spiral slopes 186, 187. Further, the starting ends (upstream sides) 186A, 187A of the spiral slopes 186, 187 are erected to the schematic axial direction.
本實施形態係利用複數個螺旋斜坡中之至少1個起端部，將 氣體通路從本體180向外周部181側連通。例如，本實施形態將起端部186A形成厚壁部，並在其內部形成氣體通路。如第三圖至第五圖所示，氣體通路例如由沿著旋回流形成體18之本體180(圓筒部182、台形部183)的中心軸之第一氣體通路188；及通過厚壁部(起端部186A)內，將第一氣體通路188連通至外周部181之外周面的第二氣體通路189而構成。 In this embodiment, at least one of the plurality of spiral slopes is used, and The gas passage communicates from the body 180 toward the outer peripheral portion 181 side. For example, in the present embodiment, the rising end portion 186A is formed into a thick portion, and a gas passage is formed therein. As shown in the third to fifth figures, the gas passage is, for example, the first gas passage 188 along the central axis of the body 180 (the cylindrical portion 182, the land portion 183) of the forming body 18, and the thick portion In the (starting end portion 186A), the first gas passage 188 is communicated to the second gas passage 189 on the outer peripheral surface of the outer peripheral portion 181.
又，在外周部181之內周面形成分別從起端部186A、187A沿著圓筒軸方向而延伸的梁190、191。梁190、191沿著外周部181之內周面伸出至指定高度，其前端抵接於裝設於液體供給部17之撓曲軟管(無圖示)的前端，進行軟管之定位。又，如第三圖所示，亦可在外周部181之外周面的一部分設置倒角部(192)，將旋回流形成體18向旋回流形成體收容空間19裝設時，用於旋轉方向之定位。 Further, the inner peripheral surface of the outer peripheral portion 181 is formed with beams 190 and 191 extending from the end portions 186A and 187A in the cylinder axis direction. The beams 190 and 191 project to a predetermined height along the inner circumferential surface of the outer peripheral portion 181, and the distal end thereof abuts against the distal end of a flexible hose (not shown) provided in the liquid supply unit 17, and the hose is positioned. Further, as shown in the third figure, a chamfered portion (192) may be provided on a part of the outer peripheral surface of the outer peripheral portion 181, and when the swirling reflow forming body 18 is attached to the swirling reflow forming body accommodating space 19, the rotation direction may be used. Positioning.
如以上所述，採用本實施形態時，由於可將高壓液體從液體供給部筆直地向旋回流形成體供給，因此可減低液體之壓力損失。又，藉由從設於旋回流形成體收容空間之橫孔供給氣體，因為可將氣體供給路與液體供給路在旋回流形成體之位置分歧，所以其構成極為簡化，且可大幅減低零件數量。 As described above, according to the present embodiment, since the high-pressure liquid can be supplied straight from the liquid supply portion to the swirling reflow forming body, the pressure loss of the liquid can be reduced. Further, since the gas is supplied from the lateral hole provided in the swirling reflow forming body accommodating space, since the gas supply path and the liquid supply path can be branched at the position of the revolving forming body, the configuration is extremely simplified, and the number of parts can be greatly reduced. .
又，向微細氣泡產生裝置內安裝旋回流形成體時，由於可從液體供給部側嵌插旋回流形成體，因此無須如先前噴嘴前端作為個別體，而從噴嘴側裝設旋回流形成體，可更簡化構造。 Further, when the swirling reflow forming body is attached to the inside of the microbubble generating device, the revolving forming body can be inserted from the liquid supply portion side. Therefore, it is not necessary to provide the revolving forming body from the nozzle side as the original nozzle tip is used as the individual body. The construction can be simplified.
再者，因為本實施形態係在旋回流形成體之外周部設置一對圓環狀之突起部，將旋回流形成體之氣體通路(第二氣體通路)的開口部設於此等突起部之間，並且沿著兩突起部配置O形環，藉由與旋回流形成體收容空間之內周面壓接，維持形成於突起部之間的空間之氣密性，所以可以極簡化之構成維持氣密性。又，由於藉此從氣體供給部延續之橫孔只須設置在對應於突起部之間所形成的圓環狀空間內的位置即可，因此擴大加工時的容許誤差，安裝時旋回流形成體之旋轉方向的定位亦容易。 Further, in the present embodiment, a pair of annular projections are provided on the outer peripheral portion of the swirling reflow forming body, and the opening of the gas passage (second gas passage) of the swirling reflow forming body is provided in the projection portion. The O-ring is disposed along the two projections, and is pressed against the inner circumferential surface of the revolving forming body accommodating space to maintain the airtightness of the space formed between the projections, so that the structure can be extremely simplified. Air tightness. Further, since the lateral hole continuing from the gas supply portion is only required to be disposed at a position corresponding to the annular space formed between the projections, the tolerance during processing is increased, and the revolving formation body is attached during mounting. The positioning of the direction of rotation is also easy.
另外，本實施形態之螺旋斜坡為一對，斜坡範圍概略180°(實際上厚壁部及梁的部分窄)，由於這是為了使螺旋斜坡在軸方向不重疊，因此，當螺旋斜坡數量為n時，螺旋斜坡之範圍只須比360°/n窄即 可。 In addition, the spiral slope of the present embodiment is a pair, and the slope range is roughly 180° (actually, the thick portion and the portion of the beam are narrow). Since this is to make the spiral slopes do not overlap in the axial direction, the number of spiral slopes is n, the range of the spiral slope only needs to be narrower than 360 ° / n can.
又，本實施形態中，係藉由射出成形而一體地形成旋回流形成體之本體(圓筒部、台形部)、螺旋斜坡、厚壁部、梁、外周部、突起部、第一氣體通路、第二氣體通路。 Further, in the present embodiment, the main body (cylinder portion, mesa portion), spiral slope, thick portion, beam, outer peripheral portion, protrusion portion, first gas passage of the revolving formation body are integrally formed by injection molding. And a second gas passage.
10‧‧‧微細氣泡產生裝置 10‧‧‧Microbubble generating device
11‧‧‧微細氣泡產生裝置本體 11‧‧‧Microbubble generating device body
12‧‧‧孔 12‧‧‧ hole
13‧‧‧橫孔 13‧‧‧ transverse holes
14‧‧‧孔 14‧‧‧ hole
15‧‧‧噴嘴 15‧‧‧ nozzle
16‧‧‧氣液混合空間 16‧‧‧ gas-liquid mixing space
17‧‧‧液體供給部 17‧‧‧Liquid supply department
18‧‧‧旋回流形成體 18‧‧‧Rotary reflow forming body
19‧‧‧旋回流形成體收容空間 19‧‧‧Rotary reflow forming body accommodating space
20‧‧‧圓錐台形空間 20‧‧‧Crested space
21‧‧‧階部 21‧‧‧
22‧‧‧圓環狀空間 22‧‧‧Ring space
23‧‧‧流量調整機構 23‧‧‧Flow adjustment mechanism
24‧‧‧氣體供給部 24‧‧‧ Gas Supply Department
25、26‧‧‧O形環 25, 26‧‧‧O-ring
27‧‧‧針型螺桿 27‧‧‧needle screw
180‧‧‧旋回流形成體本體 180‧‧‧Rotary reflow forming body
181‧‧‧外周部 181‧‧‧The outer part
182‧‧‧圓筒部 182‧‧‧Cylinder
183‧‧‧台形部 183‧‧‧Desktop
184、185‧‧‧突起部 184, 185‧‧ ‧ protrusions
186、187‧‧‧螺旋斜坡 186, 187‧‧ ‧ spiral slope
Claims (7)
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| JP2012009344A JP5807783B2 (en) | 2012-01-19 | 2012-01-19 | Fine bubble generator and swirl flow forming body |
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| TW201336582A TW201336582A (en) | 2013-09-16 |
| TWI583440B true TWI583440B (en) | 2017-05-21 |
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| JP (1) | JP5807783B2 (en) |
| KR (1) | KR102132319B1 (en) |
| CN (1) | CN104023833B (en) |
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| KR101633234B1 (en) * | 2015-11-27 | 2016-06-23 | 동명대학교산학협력단 | Microbuble generator |
| CN105498565A (en) * | 2016-01-26 | 2016-04-20 | 米兹普罗（深圳）科技有限公司 | Bubble generating device |
| KR101835986B1 (en) * | 2016-07-25 | 2018-03-07 | 시오 컴퍼니 리미티드 | Fluid Supply Pipe |
| WO2018100915A1 (en) * | 2016-11-29 | 2018-06-07 | 日東精工株式会社 | Microbubble generating nozzle |
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| JP2013146688A (en) | 2013-08-01 |
| CN104023833A (en) | 2014-09-03 |
| KR20140111640A (en) | 2014-09-19 |
| WO2013108550A1 (en) | 2013-07-25 |
| JP5807783B2 (en) | 2015-11-10 |
| CN104023833B (en) | 2016-03-02 |
| KR102132319B1 (en) | 2020-07-09 |
| TW201336582A (en) | 2013-09-16 |
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